CVE-2021-31427
low-risk
Published 2021-04-29
This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 15.1.5-47309. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Open Tools Gate component. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13082.
Do I need to act?
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0.07% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.6/10
Medium
LOCAL
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (4)
Vendor Advisory
https://kb.parallels.com/en/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-435/
Vendor Advisory
https://kb.parallels.com/en/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-435/
20
/ 100
low-risk
Severity
15/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal